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7#include <linux/module.h>
8#include <linux/string.h>
9#include <sound/core.h>
10#include <sound/pcm.h>
11#include <sound/pcm_params.h>
12#include <sound/soc.h>
13#include <sound/tlv.h>
14#include <sound/pcm_drm_eld.h>
15#include <sound/hdmi-codec.h>
16#include <sound/pcm_iec958.h>
17
18#include <drm/drm_crtc.h>
19
20#define HDMI_CODEC_CHMAP_IDX_UNKNOWN -1
21
22struct hdmi_codec_channel_map_table {
23 unsigned char map;
24 unsigned long spk_mask;
25};
26
27
28
29
30
31
32
33
34
35
36
37
38enum hdmi_codec_cea_spk_placement {
39 FL = BIT(0),
40 FC = BIT(1),
41 FR = BIT(2),
42 FLC = BIT(3),
43 FRC = BIT(4),
44 RL = BIT(5),
45 RC = BIT(6),
46 RR = BIT(7),
47 RLC = BIT(8),
48 RRC = BIT(9),
49 LFE = BIT(10),
50};
51
52
53
54
55struct hdmi_codec_cea_spk_alloc {
56 const int ca_id;
57 unsigned int n_ch;
58 unsigned long mask;
59};
60
61
62static const struct snd_pcm_chmap_elem hdmi_codec_stereo_chmaps[] = {
63 { .channels = 2,
64 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
65 { }
66};
67
68
69static const struct snd_pcm_chmap_elem hdmi_codec_8ch_chmaps[] = {
70 { .channels = 2,
71 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
72 { .channels = 4,
73 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
74 SNDRV_CHMAP_NA } },
75 { .channels = 4,
76 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
77 SNDRV_CHMAP_FC } },
78 { .channels = 4,
79 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
80 SNDRV_CHMAP_FC } },
81 { .channels = 6,
82 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
83 SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
84 { .channels = 6,
85 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
86 SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
87 { .channels = 6,
88 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
89 SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
90 { .channels = 6,
91 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
92 SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
93 { .channels = 6,
94 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
95 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
96 { .channels = 6,
97 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
98 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
99 { .channels = 6,
100 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
101 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
102 { .channels = 6,
103 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
104 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
105 { .channels = 8,
106 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
107 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
108 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
109 { .channels = 8,
110 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
111 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
112 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
113 { .channels = 8,
114 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
115 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
116 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
117 { .channels = 8,
118 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
119 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
120 SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } },
121 { .channels = 8,
122 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
123 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
124 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } },
125 { .channels = 8,
126 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
127 SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
128 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } },
129 { .channels = 8,
130 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
131 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
132 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } },
133 { .channels = 8,
134 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
135 SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR,
136 SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } },
137 { .channels = 8,
138 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
139 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
140 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
141 { .channels = 8,
142 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
143 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
144 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
145 { .channels = 8,
146 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
147 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
148 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
149 { .channels = 8,
150 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
151 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
152 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
153 { .channels = 8,
154 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
155 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
156 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
157 { .channels = 8,
158 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
159 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
160 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
161 { .channels = 8,
162 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
163 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
164 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
165 { .channels = 8,
166 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
167 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
168 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
169 { .channels = 8,
170 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
171 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
172 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
173 { .channels = 8,
174 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
175 SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
176 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
177 { .channels = 8,
178 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA,
179 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
180 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
181 { .channels = 8,
182 .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE,
183 SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA,
184 SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } },
185 { }
186};
187
188
189
190
191
192
193
194
195static const struct hdmi_codec_cea_spk_alloc hdmi_codec_channel_alloc[] = {
196 { .ca_id = 0x00, .n_ch = 2,
197 .mask = FL | FR},
198
199 { .ca_id = 0x01, .n_ch = 4,
200 .mask = FL | FR | LFE},
201
202 { .ca_id = 0x02, .n_ch = 4,
203 .mask = FL | FR | FC },
204
205 { .ca_id = 0x0b, .n_ch = 6,
206 .mask = FL | FR | LFE | FC | RL | RR},
207
208 { .ca_id = 0x08, .n_ch = 6,
209 .mask = FL | FR | RL | RR },
210
211 { .ca_id = 0x09, .n_ch = 6,
212 .mask = FL | FR | LFE | RL | RR },
213
214 { .ca_id = 0x0a, .n_ch = 6,
215 .mask = FL | FR | FC | RL | RR },
216
217 { .ca_id = 0x0f, .n_ch = 8,
218 .mask = FL | FR | LFE | FC | RL | RR | RC },
219
220 { .ca_id = 0x13, .n_ch = 8,
221 .mask = FL | FR | LFE | FC | RL | RR | RLC | RRC },
222
223 { .ca_id = 0x03, .n_ch = 8,
224 .mask = FL | FR | LFE | FC },
225 { .ca_id = 0x04, .n_ch = 8,
226 .mask = FL | FR | RC},
227 { .ca_id = 0x05, .n_ch = 8,
228 .mask = FL | FR | LFE | RC },
229 { .ca_id = 0x06, .n_ch = 8,
230 .mask = FL | FR | FC | RC },
231 { .ca_id = 0x07, .n_ch = 8,
232 .mask = FL | FR | LFE | FC | RC },
233 { .ca_id = 0x0c, .n_ch = 8,
234 .mask = FL | FR | RC | RL | RR },
235 { .ca_id = 0x0d, .n_ch = 8,
236 .mask = FL | FR | LFE | RL | RR | RC },
237 { .ca_id = 0x0e, .n_ch = 8,
238 .mask = FL | FR | FC | RL | RR | RC },
239 { .ca_id = 0x10, .n_ch = 8,
240 .mask = FL | FR | RL | RR | RLC | RRC },
241 { .ca_id = 0x11, .n_ch = 8,
242 .mask = FL | FR | LFE | RL | RR | RLC | RRC },
243 { .ca_id = 0x12, .n_ch = 8,
244 .mask = FL | FR | FC | RL | RR | RLC | RRC },
245 { .ca_id = 0x14, .n_ch = 8,
246 .mask = FL | FR | FLC | FRC },
247 { .ca_id = 0x15, .n_ch = 8,
248 .mask = FL | FR | LFE | FLC | FRC },
249 { .ca_id = 0x16, .n_ch = 8,
250 .mask = FL | FR | FC | FLC | FRC },
251 { .ca_id = 0x17, .n_ch = 8,
252 .mask = FL | FR | LFE | FC | FLC | FRC },
253 { .ca_id = 0x18, .n_ch = 8,
254 .mask = FL | FR | RC | FLC | FRC },
255 { .ca_id = 0x19, .n_ch = 8,
256 .mask = FL | FR | LFE | RC | FLC | FRC },
257 { .ca_id = 0x1a, .n_ch = 8,
258 .mask = FL | FR | RC | FC | FLC | FRC },
259 { .ca_id = 0x1b, .n_ch = 8,
260 .mask = FL | FR | LFE | RC | FC | FLC | FRC },
261 { .ca_id = 0x1c, .n_ch = 8,
262 .mask = FL | FR | RL | RR | FLC | FRC },
263 { .ca_id = 0x1d, .n_ch = 8,
264 .mask = FL | FR | LFE | RL | RR | FLC | FRC },
265 { .ca_id = 0x1e, .n_ch = 8,
266 .mask = FL | FR | FC | RL | RR | FLC | FRC },
267 { .ca_id = 0x1f, .n_ch = 8,
268 .mask = FL | FR | LFE | FC | RL | RR | FLC | FRC },
269};
270
271struct hdmi_codec_priv {
272 struct hdmi_codec_pdata hcd;
273 uint8_t eld[MAX_ELD_BYTES];
274 struct snd_pcm_chmap *chmap_info;
275 unsigned int chmap_idx;
276 struct mutex lock;
277};
278
279static const struct snd_soc_dapm_widget hdmi_widgets[] = {
280 SND_SOC_DAPM_OUTPUT("TX"),
281};
282
283enum {
284 DAI_ID_I2S = 0,
285 DAI_ID_SPDIF,
286};
287
288static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
289 struct snd_ctl_elem_info *uinfo)
290{
291 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
292 uinfo->count = FIELD_SIZEOF(struct hdmi_codec_priv, eld);
293
294 return 0;
295}
296
297static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
298 struct snd_ctl_elem_value *ucontrol)
299{
300 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
301 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
302
303 memcpy(ucontrol->value.bytes.data, hcp->eld, sizeof(hcp->eld));
304
305 return 0;
306}
307
308static unsigned long hdmi_codec_spk_mask_from_alloc(int spk_alloc)
309{
310 int i;
311 static const unsigned long hdmi_codec_eld_spk_alloc_bits[] = {
312 [0] = FL | FR, [1] = LFE, [2] = FC, [3] = RL | RR,
313 [4] = RC, [5] = FLC | FRC, [6] = RLC | RRC,
314 };
315 unsigned long spk_mask = 0;
316
317 for (i = 0; i < ARRAY_SIZE(hdmi_codec_eld_spk_alloc_bits); i++) {
318 if (spk_alloc & (1 << i))
319 spk_mask |= hdmi_codec_eld_spk_alloc_bits[i];
320 }
321
322 return spk_mask;
323}
324
325static void hdmi_codec_eld_chmap(struct hdmi_codec_priv *hcp)
326{
327 u8 spk_alloc;
328 unsigned long spk_mask;
329
330 spk_alloc = drm_eld_get_spk_alloc(hcp->eld);
331 spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc);
332
333
334 if ((spk_mask & ~(FL | FR)) && hcp->chmap_info->max_channels > 2)
335 hcp->chmap_info->chmap = hdmi_codec_8ch_chmaps;
336 else
337 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;
338}
339
340static int hdmi_codec_get_ch_alloc_table_idx(struct hdmi_codec_priv *hcp,
341 unsigned char channels)
342{
343 int i;
344 u8 spk_alloc;
345 unsigned long spk_mask;
346 const struct hdmi_codec_cea_spk_alloc *cap = hdmi_codec_channel_alloc;
347
348 spk_alloc = drm_eld_get_spk_alloc(hcp->eld);
349 spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc);
350
351 for (i = 0; i < ARRAY_SIZE(hdmi_codec_channel_alloc); i++, cap++) {
352
353 if (!spk_alloc && cap->ca_id == 0)
354 return i;
355 if (cap->n_ch != channels)
356 continue;
357 if (!(cap->mask == (spk_mask & cap->mask)))
358 continue;
359 return i;
360 }
361
362 return -EINVAL;
363}
364static int hdmi_codec_chmap_ctl_get(struct snd_kcontrol *kcontrol,
365 struct snd_ctl_elem_value *ucontrol)
366{
367 unsigned const char *map;
368 unsigned int i;
369 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
370 struct hdmi_codec_priv *hcp = info->private_data;
371
372 map = info->chmap[hcp->chmap_idx].map;
373
374 for (i = 0; i < info->max_channels; i++) {
375 if (hcp->chmap_idx == HDMI_CODEC_CHMAP_IDX_UNKNOWN)
376 ucontrol->value.integer.value[i] = 0;
377 else
378 ucontrol->value.integer.value[i] = map[i];
379 }
380
381 return 0;
382}
383
384static int hdmi_codec_startup(struct snd_pcm_substream *substream,
385 struct snd_soc_dai *dai)
386{
387 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
388 int ret = 0;
389
390 ret = mutex_trylock(&hcp->lock);
391 if (!ret) {
392 dev_err(dai->dev, "Only one simultaneous stream supported!\n");
393 return -EINVAL;
394 }
395
396 if (hcp->hcd.ops->audio_startup) {
397 ret = hcp->hcd.ops->audio_startup(dai->dev->parent, hcp->hcd.data);
398 if (ret)
399 goto err;
400 }
401
402 if (hcp->hcd.ops->get_eld) {
403 ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data,
404 hcp->eld, sizeof(hcp->eld));
405
406 if (!ret) {
407 ret = snd_pcm_hw_constraint_eld(substream->runtime,
408 hcp->eld);
409 if (ret)
410 goto err;
411 }
412
413 hdmi_codec_eld_chmap(hcp);
414 }
415 return 0;
416
417err:
418
419 mutex_unlock(&hcp->lock);
420 return ret;
421}
422
423static void hdmi_codec_shutdown(struct snd_pcm_substream *substream,
424 struct snd_soc_dai *dai)
425{
426 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
427
428 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
429 hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data);
430
431 mutex_unlock(&hcp->lock);
432}
433
434static int hdmi_codec_hw_params(struct snd_pcm_substream *substream,
435 struct snd_pcm_hw_params *params,
436 struct snd_soc_dai *dai)
437{
438 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
439 struct hdmi_codec_daifmt *cf = dai->playback_dma_data;
440 struct hdmi_codec_params hp = {
441 .iec = {
442 .status = { 0 },
443 .subcode = { 0 },
444 .pad = 0,
445 .dig_subframe = { 0 },
446 }
447 };
448 int ret, idx;
449
450 dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__,
451 params_width(params), params_rate(params),
452 params_channels(params));
453
454 ret = snd_pcm_create_iec958_consumer_hw_params(params, hp.iec.status,
455 sizeof(hp.iec.status));
456 if (ret < 0) {
457 dev_err(dai->dev, "Creating IEC958 channel status failed %d\n",
458 ret);
459 return ret;
460 }
461
462 hdmi_audio_infoframe_init(&hp.cea);
463 hp.cea.channels = params_channels(params);
464 hp.cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM;
465 hp.cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;
466 hp.cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;
467
468
469 idx = hdmi_codec_get_ch_alloc_table_idx(hcp, hp.cea.channels);
470 if (idx < 0) {
471 dev_err(dai->dev, "Not able to map channels to speakers (%d)\n",
472 idx);
473 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
474 return idx;
475 }
476 hp.cea.channel_allocation = hdmi_codec_channel_alloc[idx].ca_id;
477 hcp->chmap_idx = hdmi_codec_channel_alloc[idx].ca_id;
478
479 hp.sample_width = params_width(params);
480 hp.sample_rate = params_rate(params);
481 hp.channels = params_channels(params);
482
483 return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data,
484 cf, &hp);
485}
486
487static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai,
488 unsigned int fmt)
489{
490 struct hdmi_codec_daifmt *cf = dai->playback_dma_data;
491
492
493 memset(cf, 0, sizeof(*cf));
494
495 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
496 case SND_SOC_DAIFMT_CBM_CFM:
497 cf->bit_clk_master = 1;
498 cf->frame_clk_master = 1;
499 break;
500 case SND_SOC_DAIFMT_CBS_CFM:
501 cf->frame_clk_master = 1;
502 break;
503 case SND_SOC_DAIFMT_CBM_CFS:
504 cf->bit_clk_master = 1;
505 break;
506 case SND_SOC_DAIFMT_CBS_CFS:
507 break;
508 default:
509 return -EINVAL;
510 }
511
512 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
513 case SND_SOC_DAIFMT_NB_NF:
514 break;
515 case SND_SOC_DAIFMT_NB_IF:
516 cf->frame_clk_inv = 1;
517 break;
518 case SND_SOC_DAIFMT_IB_NF:
519 cf->bit_clk_inv = 1;
520 break;
521 case SND_SOC_DAIFMT_IB_IF:
522 cf->frame_clk_inv = 1;
523 cf->bit_clk_inv = 1;
524 break;
525 }
526
527 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
528 case SND_SOC_DAIFMT_I2S:
529 cf->fmt = HDMI_I2S;
530 break;
531 case SND_SOC_DAIFMT_DSP_A:
532 cf->fmt = HDMI_DSP_A;
533 break;
534 case SND_SOC_DAIFMT_DSP_B:
535 cf->fmt = HDMI_DSP_B;
536 break;
537 case SND_SOC_DAIFMT_RIGHT_J:
538 cf->fmt = HDMI_RIGHT_J;
539 break;
540 case SND_SOC_DAIFMT_LEFT_J:
541 cf->fmt = HDMI_LEFT_J;
542 break;
543 case SND_SOC_DAIFMT_AC97:
544 cf->fmt = HDMI_AC97;
545 break;
546 default:
547 dev_err(dai->dev, "Invalid DAI interface format\n");
548 return -EINVAL;
549 }
550
551 return 0;
552}
553
554static int hdmi_codec_digital_mute(struct snd_soc_dai *dai, int mute)
555{
556 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
557
558 if (hcp->hcd.ops->digital_mute)
559 return hcp->hcd.ops->digital_mute(dai->dev->parent,
560 hcp->hcd.data, mute);
561
562 return 0;
563}
564
565static const struct snd_soc_dai_ops hdmi_codec_i2s_dai_ops = {
566 .startup = hdmi_codec_startup,
567 .shutdown = hdmi_codec_shutdown,
568 .hw_params = hdmi_codec_hw_params,
569 .set_fmt = hdmi_codec_i2s_set_fmt,
570 .digital_mute = hdmi_codec_digital_mute,
571};
572
573static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = {
574 .startup = hdmi_codec_startup,
575 .shutdown = hdmi_codec_shutdown,
576 .hw_params = hdmi_codec_hw_params,
577 .digital_mute = hdmi_codec_digital_mute,
578};
579
580#define HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
581 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
582 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\
583 SNDRV_PCM_RATE_192000)
584
585#define SPDIF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |\
586 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE |\
587 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |\
588 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE)
589
590
591
592
593
594
595
596
597
598#define I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |\
599 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE |\
600 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |\
601 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE |\
602 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE)
603
604static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd,
605 struct snd_soc_dai *dai)
606{
607 struct snd_soc_dai_driver *drv = dai->driver;
608 struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
609 struct snd_kcontrol *kctl;
610 struct snd_kcontrol_new hdmi_eld_ctl = {
611 .access = SNDRV_CTL_ELEM_ACCESS_READ |
612 SNDRV_CTL_ELEM_ACCESS_VOLATILE,
613 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
614 .name = "ELD",
615 .info = hdmi_eld_ctl_info,
616 .get = hdmi_eld_ctl_get,
617 .device = rtd->pcm->device,
618 };
619 int ret;
620
621 ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
622 NULL, drv->playback.channels_max, 0,
623 &hcp->chmap_info);
624 if (ret < 0)
625 return ret;
626
627
628 hcp->chmap_info->private_data = hcp;
629 hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get;
630
631
632 hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;
633 hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
634
635
636 kctl = snd_ctl_new1(&hdmi_eld_ctl, dai->component);
637 if (!kctl)
638 return -ENOMEM;
639
640 return snd_ctl_add(rtd->card->snd_card, kctl);
641}
642
643static int hdmi_dai_probe(struct snd_soc_dai *dai)
644{
645 struct snd_soc_dapm_context *dapm;
646 struct hdmi_codec_daifmt *daifmt;
647 struct snd_soc_dapm_route route = {
648 .sink = "TX",
649 .source = dai->driver->playback.stream_name,
650 };
651 int ret;
652
653 dapm = snd_soc_component_get_dapm(dai->component);
654 ret = snd_soc_dapm_add_routes(dapm, &route, 1);
655 if (ret)
656 return ret;
657
658 daifmt = kzalloc(sizeof(*daifmt), GFP_KERNEL);
659 if (!daifmt)
660 return -ENOMEM;
661
662 dai->playback_dma_data = daifmt;
663 return 0;
664}
665
666static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai)
667{
668 struct hdmi_codec_daifmt *cf = dai->playback_dma_data;
669 int ret;
670
671 ret = hdmi_dai_probe(dai);
672 if (ret)
673 return ret;
674
675 cf = dai->playback_dma_data;
676 cf->fmt = HDMI_SPDIF;
677
678 return 0;
679}
680
681static int hdmi_codec_dai_remove(struct snd_soc_dai *dai)
682{
683 kfree(dai->playback_dma_data);
684 return 0;
685}
686
687static const struct snd_soc_dai_driver hdmi_i2s_dai = {
688 .name = "i2s-hifi",
689 .id = DAI_ID_I2S,
690 .probe = hdmi_dai_probe,
691 .remove = hdmi_codec_dai_remove,
692 .playback = {
693 .stream_name = "I2S Playback",
694 .channels_min = 2,
695 .channels_max = 8,
696 .rates = HDMI_RATES,
697 .formats = I2S_FORMATS,
698 .sig_bits = 24,
699 },
700 .ops = &hdmi_codec_i2s_dai_ops,
701 .pcm_new = hdmi_codec_pcm_new,
702};
703
704static const struct snd_soc_dai_driver hdmi_spdif_dai = {
705 .name = "spdif-hifi",
706 .id = DAI_ID_SPDIF,
707 .probe = hdmi_dai_spdif_probe,
708 .remove = hdmi_codec_dai_remove,
709 .playback = {
710 .stream_name = "SPDIF Playback",
711 .channels_min = 2,
712 .channels_max = 2,
713 .rates = HDMI_RATES,
714 .formats = SPDIF_FORMATS,
715 },
716 .ops = &hdmi_codec_spdif_dai_ops,
717 .pcm_new = hdmi_codec_pcm_new,
718};
719
720static int hdmi_of_xlate_dai_id(struct snd_soc_component *component,
721 struct device_node *endpoint)
722{
723 struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component);
724 int ret = -ENOTSUPP;
725
726 if (hcp->hcd.ops->get_dai_id)
727 ret = hcp->hcd.ops->get_dai_id(component, endpoint);
728
729 return ret;
730}
731
732static const struct snd_soc_component_driver hdmi_driver = {
733 .dapm_widgets = hdmi_widgets,
734 .num_dapm_widgets = ARRAY_SIZE(hdmi_widgets),
735 .of_xlate_dai_id = hdmi_of_xlate_dai_id,
736 .idle_bias_on = 1,
737 .use_pmdown_time = 1,
738 .endianness = 1,
739 .non_legacy_dai_naming = 1,
740};
741
742static int hdmi_codec_probe(struct platform_device *pdev)
743{
744 struct hdmi_codec_pdata *hcd = pdev->dev.platform_data;
745 struct snd_soc_dai_driver *daidrv;
746 struct device *dev = &pdev->dev;
747 struct hdmi_codec_priv *hcp;
748 int dai_count, i = 0;
749 int ret;
750
751 if (!hcd) {
752 dev_err(dev, "%s: No platform data\n", __func__);
753 return -EINVAL;
754 }
755
756 dai_count = hcd->i2s + hcd->spdif;
757 if (dai_count < 1 || !hcd->ops || !hcd->ops->hw_params ||
758 !hcd->ops->audio_shutdown) {
759 dev_err(dev, "%s: Invalid parameters\n", __func__);
760 return -EINVAL;
761 }
762
763 hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL);
764 if (!hcp)
765 return -ENOMEM;
766
767 hcp->hcd = *hcd;
768 mutex_init(&hcp->lock);
769
770 daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL);
771 if (!daidrv)
772 return -ENOMEM;
773
774 if (hcd->i2s) {
775 daidrv[i] = hdmi_i2s_dai;
776 daidrv[i].playback.channels_max = hcd->max_i2s_channels;
777 i++;
778 }
779
780 if (hcd->spdif)
781 daidrv[i] = hdmi_spdif_dai;
782
783 dev_set_drvdata(dev, hcp);
784
785 ret = devm_snd_soc_register_component(dev, &hdmi_driver, daidrv,
786 dai_count);
787 if (ret) {
788 dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n",
789 __func__, ret);
790 return ret;
791 }
792 return 0;
793}
794
795static struct platform_driver hdmi_codec_driver = {
796 .driver = {
797 .name = HDMI_CODEC_DRV_NAME,
798 },
799 .probe = hdmi_codec_probe,
800};
801
802module_platform_driver(hdmi_codec_driver);
803
804MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>");
805MODULE_DESCRIPTION("HDMI Audio Codec Driver");
806MODULE_LICENSE("GPL");
807MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME);
808